22016985 has 16 divisors (see below), whose sum is σ = 35467200. Its totient is φ = 11662400.

The previous prime is 22016947. The next prime is 22016987. The reversal of 22016985 is 58961022.

It is not a de Polignac number, because 22016985 - 2¹⁸ = 21754841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22016987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2691 + ... + 7160.

It is an arithmetic number, because the mean of its divisors is an integer number (2216700).

Almost surely, 2^22016985 is an apocalyptic number.

It is an amenable number.

22016985 is a deficient number, since it is larger than the sum of its proper divisors (13450215).

22016985 is a wasteful number, since it uses less digits than its factorization.

22016985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 22016985 is about 4692.2260175742. The cubic root of 22016985 is about 280.2760245737.

It can be divided in two parts, 220 and 16985, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 22016985 in words is "twenty-two million, sixteen thousand, nine hundred eighty-five".